ccna 200-301 david bombal

ccna 200-301 david bombal.Convergence ) The time it takes for a routing protocol to respond to changes in the network, including removing bad routes and adding new, better routes, so that the current optimal route exists in the routing tables of all routers.Channel Service Unit/Data Service Unit (CSU/DSU) A device that connects physical circuits installed by the telephone company to some CPE equipment, providing connectors used by the DTE to adapt the physical interfaces supported by the DTE to the voltage, current, framing, and circuitry.Customer premise equipment (CPE) This is a telephone office term for field equipment located at the customer's location (enterprise location) that connects to the WAN service provided by the telephone office.DDatabase Description ) An OSPF data packet type listed in the OSPF LSDB that is briefly described by the LSA.The Data-link Connection Id is a device that provides clock control over the WAN link from a physical layer perspective, commonly known as a CSU/DSU. From a packet switching perspective, perhaps the service provider's switch connected to the router can be considered a DCE.Deencapsulation The process by which a device interprets a lower-level header on a computer receiving data over the network and removes that header when it has finished interpreting it, moving on to the next higher-level PDU.defaultgateway/defaultrouter On an IP host, when the destination address of a packet is on a subnet that is not the localsubnet, the host wants to send the packet to the IP address of a router.Deny An action taken by an ACL to discard a packet.